B3155 GMC Code - Passenger Door Lock Switch Circuit
Quick Answer
The Body Control Module (BCM) monitors the voltage level of the door lock and door unlock signal circuits. Common causes include Faulty Passenger Door Lock Switch, Passenger Door Lock Switch harness is open or shorted, Passenger Door Lock Switch circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B3155 GMC indicates Passenger Door Lock Switch Circuit.
- Common causes
- Common causes include Faulty Passenger Door Lock Switch, Passenger Door Lock Switch harness is open or shorted, Passenger Door Lock Switch circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B3155 GMC Description
What are the Possible Causes of the DTC B3155 GMC?
- Faulty Passenger Door Lock Switch
- Passenger Door Lock Switch harness is open or shorted
- Passenger Door Lock Switch circuit poor electrical connection
- Faulty Body Control Module (BCM)
How to Fix the DTC B3155 GMC?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B3155 GMC code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific GMC Models
- B3155 2014 GMC Sierra — Passenger Door Lock Switch Circuit
- B3155 2015 GMC Sierra — Passenger Door Lock Switch Circuit
- B3155 2016 GMC Sierra — Passenger Door Lock Switch Circuit
- B3155 2017 GMC Sierra — Passenger Door Lock Switch Circuit
- B3155 2018 GMC Sierra — Passenger Door Lock Switch Circuit
Frequently Asked Questions about B3155 GMC Code
1. What are common symptoms of OBDII code B3155 GMC regarding the passenger door lock switch circuit?
The common symptoms include the passenger door not locking or unlocking properly, erratic behavior of the door lock switch, and possible issues with the central locking system.
2. What are the possible causes of OBDII code B3155 GMC related to the passenger door lock switch circuit?
The code can be triggered by a faulty passenger door lock switch, damaged wiring or connectors in the circuit, a malfunctioning body control module, or issues with the door lock actuator.
3. How can I diagnose the cause of OBDII code B3155 GMC for the passenger door lock switch circuit?
Diagnosis typically involves inspecting the passenger door lock switch for proper function, checking the wiring and connectors for any damage, testing the door lock actuator, and scanning the body control module for related error codes.
4. What are some repair tips for fixing OBDII code B3155 GMC related to the passenger door lock switch circuit?
Repair tips may include repairing or replacing the passenger door lock switch, repairing damaged wiring or connectors, replacing the door lock actuator if necessary, and resetting the body control module after repairs.
5. Can I reset OBDII code B3155 GMC for the passenger door lock switch circuit without fixing the underlying issue?
While you can clear the code using an OBDII scanner, it is recommended to diagnose and repair the root cause to prevent the issue from recurring and ensure proper functioning of the passenger door lock system.
6. Are there any safety concerns associated with OBDII code B3155 GMC for the passenger door lock switch circuit?
If the passenger door lock is not functioning correctly due to this code, there may be safety concerns related to security and convenience, such as potential unauthorized access to the vehicle or difficulty locking the door properly.
7. Can a DIY enthusiast with automotive knowledge fix OBDII code B3155 GMC concerning the passenger door lock switch circuit?
Depending on the DIY enthusiast's skill level and access to tools, they may be able to diagnose and repair the issue themselves by following the vehicle's repair manual or seeking guidance from online resources.
8. How much does it typically cost to repair OBDII code B3155 GMC related to the passenger door lock switch circuit at a professional auto repair shop?
The cost of repairs can vary based on the specific cause of the issue, but it may involve diagnostic fees, parts replacement costs, and labor charges, which can range from a few hundred to over a thousand dollars.
9. How long does it usually take to repair OBDII code B3155 GMC for the passenger door lock switch circuit?
The repair time can vary depending on the exact cause of the issue, the availability of parts, and the shop's workload, but it typically takes a few hours to half a day to diagnose and fix the problem.
10. Is it possible for OBDII code B3155 GMC related to the passenger door lock switch circuit to cause other electrical issues in the vehicle?
While the code specifically relates to the passenger door lock switch circuit, electrical issues in one part of the vehicle can sometimes affect other systems, so it's essential to address the problem promptly to prevent potential secondary issues.
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